Journal of Food, Agriculture and Environment
Vol 10,
Issue 1,2012
Online ISSN: 1459-0263
Print ISSN: 1459-0255
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The observation of ultra-structure during the petal senescence of Dracocephalum argunense Fisch. ex Link
Author(s):
Fenglan Li 1,
Lijuan Shi 1, Yanzhong Feng 1,2, Qi Wei 2, Heshu Chen 2, Di Liu 2, Feifei Qin 3, Hui-lian Xu 4, Youwen Qiu 1, Baozhong Hu 1*Recieved Date: 2011-11-18, Accepted Date: 2012-01-03
Abstract:Dracocephalum argunense is a local wild flower in Heilongjiang, China, which has been successfully domesticated. The value of . argunense in landscaping has been severely affected due to its flowering time of only 2-3 days. The petal senescence is related to the programmed cell death. It is important to elucidate phenomenon and mechanisms of the petal senescence process. Therefore, in the present study, the ultrastructure of the petal cells during the process of flowering was first investigated. The results showed that the programmed cell death appeared during the process of the petal senescence of D. argunense. There were many big phagocytic vesicles produced by vacuoles in the cells acted as lysosome that led to the self-disintegration of the petal cells and thus fulfilled the process of cell death. It was suggested that the petal senescence of D. argunense is the type of vacuole related programmed cell death.
Keywords:Dracocephalum argunense,
petal senescence, ultrastructure, phagocytic vesicles, programmed cell deathJournal: Journal of Food, Agriculture and Environment
Year: 2012
Volume: 10
Issue: 1
Category: Environment
Pages: 732-735
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